New MRI Test Predicts Dementia 9 Years Early with 80% Accuracy

Researchers at Queen Mary University of London have developed a method using fMRI scans to predict dementia with over 80% accuracy up to nine years before diagnosis by analyzing changes in the brain's default mode network (DMN). This approach outperforms traditional memory tests and brain shrinkage measurements, highlighting potential for early intervention. The study also found that genetic risk and social isolation significantly affect DMN connectivity.